
\setlength{\tabcolsep}{6pt} \renewcommand{\arraystretch}{1} \footnotesize

\begin{tabular}{l*{9}{c}}\hline  &  Treatment on mediator & Outcome-mediator & Share explained\\ \hline

\hline {\textit{Standardized values of efficacy_index}  & 0.26**  & 0.28***   & 0.34  \\
       & [0.10]   & [0.08] & [9.20]   \\
       & (       0.066,       0.455 )   & (       0.120,       0.447 )  & (       0.049,       1.372 )    \\

\hline {\textit{Standardized values of lib_index}  & 0.00  & 0.10   & 0.00  \\
       & [0.10]   & [0.10] & [0.46]   \\
       & (      -0.193,       0.212 )   & (      -0.078,       0.293 )  & (      -0.274,       0.159 )    \\

\hline {\textit{Standardized values of soccol_index}  & 0.29***  & 0.11   & 0.14  \\
       & [0.10]   & [0.09] & [2.02]   \\
       & (       0.094,       0.482 )   & (      -0.068,       0.276 )  & (      -0.157,       0.685 )    \\

\hline

\hline \end{tabular}
